diff --git a/recipes/engine_v2/engine_v2.expected/basic_linux.json b/recipes/engine_v2/engine_v2.expected/basic_linux.json
index 8364c19..951788d 100644
--- a/recipes/engine_v2/engine_v2.expected/basic_linux.json
+++ b/recipes/engine_v2/engine_v2.expected/basic_linux.json
@@ -587,6 +587,31 @@
         "hostname": "rdbhost"
       }
     },
+    "name": "Clobber build output"
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "rmtree",
+      "[CACHE]/builder/src/out"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "proj:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
     "name": "Clobber build download folder"
   },
   {
diff --git a/recipes/engine_v2/engine_v2.expected/basic_mac.json b/recipes/engine_v2/engine_v2.expected/basic_mac.json
index 170e6fe..46ac1d6 100644
--- a/recipes/engine_v2/engine_v2.expected/basic_mac.json
+++ b/recipes/engine_v2/engine_v2.expected/basic_mac.json
@@ -497,6 +497,31 @@
         "hostname": "rdbhost"
       }
     },
+    "name": "Clobber build output"
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "rmtree",
+      "[CACHE]/builder/src/out"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "flutter:prod"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
     "name": "Clobber build download folder"
   },
   {
diff --git a/recipes/engine_v2/engine_v2.expected/codesign_release_branch.json b/recipes/engine_v2/engine_v2.expected/codesign_release_branch.json
index 7e7d92b..dd046df 100644
--- a/recipes/engine_v2/engine_v2.expected/codesign_release_branch.json
+++ b/recipes/engine_v2/engine_v2.expected/codesign_release_branch.json
@@ -963,6 +963,31 @@
         "hostname": "rdbhost"
       }
     },
+    "name": "Clobber build output"
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "rmtree",
+      "[CACHE]/builder/src/out"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "proj:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
     "name": "Clobber build download folder"
   },
   {
diff --git a/recipes/engine_v2/engine_v2.expected/config_from_file.json b/recipes/engine_v2/engine_v2.expected/config_from_file.json
index feef63c..b760c05 100644
--- a/recipes/engine_v2/engine_v2.expected/config_from_file.json
+++ b/recipes/engine_v2/engine_v2.expected/config_from_file.json
@@ -868,6 +868,31 @@
     ]
   },
   {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "rmtree",
+      "[CACHE]/builder/src/out"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "proj:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "Clobber build output"
+  },
+  {
     "cmd": [],
     "name": "launch tests"
   },
diff --git a/recipes/engine_v2/engine_v2.py b/recipes/engine_v2/engine_v2.py
index b3e40e4..7ee5566 100644
--- a/recipes/engine_v2/engine_v2.py
+++ b/recipes/engine_v2/engine_v2.py
@@ -127,6 +127,10 @@
     else:
       env, env_prefixes = api.repo_util.engine_environment(full_engine_checkout)
       api.repo_util.engine_checkout(full_engine_checkout, env, env_prefixes)
+      # The checkouts are using cache which may have some old artifacts in the out
+      # directory. We are cleaning out the folder to ensure we start from an empty
+      # out folder.
+      api.file.rmtree('Clobber build output', full_engine_checkout.join('src', 'out'))
 
   if generators:
     # Download sub-builds